vuototestit

Vuototestit, or leak tests, are procedures used to determine whether a closed system or component contains a leak and to quantify the rate at which it loses medium. They are used across industries to verify the integrity of containers, piping, enclosures, joints, seals and assemblies, often as part of quality control or safety verification. The tests can be performed with various media, including air, inert gas or tracer gases, depending on the required sensitivity and the nature of the object under test.

Common testing methods include pressure decay, where a test item is sealed and pressurized and the change in pressure is monitored over time; vacuum decay, where the item is evacuated and a rise in pressure is observed; and highly sensitive methods such as helium leak testing using mass spectrometry, which can detect very small leaks. Other approaches include tracer gas methods and bubble tests in a liquid medium for rapid screening. The choice of method depends on factors such as required sensitivity, test item geometry, production speed, and safety considerations.

The testing process typically involves preparing the item, applying the chosen test condition (pressure, vacuum or tracer), monitoring for a specified period, and comparing results against predefined acceptance criteria. Documentation of test conditions, results and traceability is common practice, especially in regulated industries or with critical components. Vuototestit are widely used in automotive, aerospace, electronics, medical devices, packaging and plumbing sectors to ensure product integrity and prevent leakage-related failures. Limitations include potential false positives or negatives, the need for proper calibration, and the suitability of the test method to the geometry and materials involved.